30 



34. Cerapachys sulcinodis, Emery, Ann. Mus. Civ. Gen. xxvii (1889), 



p. 493, ; Forel, Jour. Bomb. N. H. Sac. xiii (1900), p. 331, $ . 



$ . Closely resembles C. risii, Forel, but is larger, the mandibles 

 are striate (only punctate in C. risii), the proportion of the joints 

 of the flagellum of the antenna3 is different, and the apex of the 

 same is not so incrassate as in 0. risii. Black, the mandibles and 

 antennas fuscous ; the legs and extreme apex of the abdomen 

 reddish yellow ; the whole insect covered with soft short, sparsely 

 scattered, erect white hairs. Head anteriorly sparsely, posteriorly 

 cribrately punctured. Thorax rounded above, submargined 

 anteriorly ; the basal portion of the metanotum separated from the 

 obliquely truncate apical portion by a fine shining carina, not 

 so marked and distinct above as in C. risii ; legs, pedicel, and 

 abdomen as in C. risii. 



Length. $ 7-7'5 mm. 



Nab. Burma, Kareunee, 5000 ft. (Fea); Maymyo, 3000 ft. 

 (Smythieg). 



35. Cerapachys aitkeni, Forel, Jour. Somb. JV. H. Soc. xiii (1900), 



pp. 331 & 332, & c? . 



. Resembles C. fossulatus, Forel, but is smaller, and the 

 difference in the number of joints of the flagellum of the antennae 

 separates it at once. Head and second and following segments 

 of the abdomen black ; mandibles, antennae, clypeus, antennal 

 hollows and carinae, thorax, legs, pedicel and basal segment 

 of the abdomen dark red. The head also is sometimes partially, 

 sometimes entirely, red or reddish. Head, thorax and abdomen 

 covered with a thick, short, erect yellowish pilosity, more dense 

 than in any other species, but not hiding the sculpture in any way. 

 Head very closely and somewhat irregularly cribrate and sub- 

 opaque ; thorax and node of pedicel with sparsely scattered 

 shallow punctures ; abdomen almost smooth and shining. Head 

 as broad posteriorly as in front, the posterior emargination deep, 

 the posterior lateral angle very acute. Thorax convex and arched 

 above, anteriorly submargined, posteriorly the basal portion of the 

 metanotum is separated from the apical portion by a semicircular 

 carina ; legs short and stout, with the femora and tibioa cylindrical. 

 Node of the pedicel and abdomen as in C. fossulatus. 



c? . " Mandibles shining, triangular, with the masticatory margin 

 rather long, slightly concave. Antennae with 13 joints, but 

 resembling the antennae of the . . . . Eyes of moderate size. 

 Head, antennal carinae, &c. as in the . Mesonotum slightly 

 convex and slightly overhanging the pronotum, without converging 

 furrows. The oblique portion of the metanotum truncate, 

 margined by a carina as in the . Pedicel also as in the . 

 First abdominal segment, properly speaking, constricted and 

 narrow, and like that of the worker appearing as if it were a 2nd 

 node to the pedicel. Pygidium rounded. Hypopygium deeply 

 emarginate, terminating in two long spines, one on each side, 



